鲁棒稳定性分析及其在飞行颤振试验中的应用

Robust stability analysis and its application in flight flutter test

结合国内外的研究现状和工程应用需要,基于控制理论利用结构奇异值μ分析法将设计理论模型数据和实测试飞数据结合起来,可以在飞行试验过程中进行颤振边界预测,直接给出保守的颤振临界动压或者颤振临界速度,从而能够增加试验的安全性、缩短试飞周期、减少试验点并节省试验经费,是目前颤振试飞方法的有益补充。

This article combined with the present domestic and foreign research situation and the engineering application demands,combining the theoretical design model data and the flight measured data and using the structured singular value μ analysis method based on the control theory,the flutter boundary can be predicted in flight test process,directly get conservative critical flutter dynamic pressure or flutter critical speed,which can increase the test security,shortening the flight test time,reduce test points and save test cost,it is a beneficial supplement of the currently flutter flight test method.